CORS Misconfiguration in danswer-ai/danswer

published 2025-03-20 last yr. modified 2026-06-17 4mo ago also EUVD-2025-6938

cvss: 7.4; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits: 0; none known

A CORS misconfiguration in danswer-ai/danswer v1.4.1 allows attackers to steal sensitive information such as chat contents, API keys, and other data. This vulnerability occurs due to improper validation of the origin header, enabling malicious web pages to make unauthorized requests to the application's API.

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CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: last yr. (2025-03-20)

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-11).

CVSS scores

assigned by	version	score	vector
CNA	3.0	7.4	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Affected products

danswer-ai danswer-ai/danswer

Classification

Weakness

CWE-346 Origin Validation Error

References

huntr.com /bounties/06a21857-e13f-4cf4-aa67-de11419a98c0

Sources

CVE List CVE-2024-7819
NVD CVE-2024-7819

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